Survey reveals marine biodiversity hotspot needs protection

An environmental DNA study conducted by a team of researchers from various institutions has identified distinct regions of extraordinary marine biodiversity within Western Australia's Exmouth Gulf, which could inform the management of a proposed marine park in the area. The study, published in Diversity and Distributions, found that the Exmouth Gulf is a globally significant refuge for many marine species, with the eastern gulf emerging as a hotspot for elasmobranchs and threatened species.

The research, which employed a metabarcoding gene-sequencing technique to analyze seawater eDNA samples collected from 19 sites across 3,000 square kilometers, revealed that the Exmouth Gulf exhibits significantly distinct marine communities and provides critical habitat for threatened species. The findings underscore the region's environmental, social, and cultural significance, as well as its global ecological significance, and highlight the importance of effective and sustainable conservation management strategies.

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